随着我国城市建设的不断发展,城市立交桥的建造设计将会越来越多。作为立交桥设计的一个重要组成部分——地下给排水管道的设计也会经常遇到的。本人近几年通过对深圳市几座城市立交桥的地下给排水管道的设计,体会到它与一般市政道路下的管道设计有所不同,它具有自身特殊复杂性和设计步骤。现简要介绍如下: With the continuous development of urban construction in our country, the design and construction of urban overpass will be more and more. As an important part of overpass design - the design of underground water supply and drainage pipe will often encounter. In recent years, I have designed the underground water supply and drainage pipeline in several urban overpasses in Shenzhen City and realized that it is different from the pipeline design under the general municipal road. It has its own special complexity and design steps. Now briefly introduce as follows: